Hi Russell, After merging the arm tree, today's linux-next build (arm multi_v7_defconfig) failed like this: In file included from include/linux/bitops.h:36:0, from include/linux/bitmap.h:7, from drivers/dma/sun4i-dma.c:11: drivers/dma/sun4i-dma.c: In function 'find_and_use_pchan': include/linux/bitops.h:56:34: error: passing argument 1 of '_find_next_zero_bit_le' from incompatible pointer type [-Werror=incompatible-pointer-types] for ((bit) = find_next_zero_bit((addr), (size), (bit)); \ ^ arch/arm/include/asm/bitops.h:200:61: note: in definition of macro 'find_next_zero_bit' #define find_next_zero_bit(p,sz,off) _find_next_zero_bit_le(p,sz,off) ^ drivers/dma/sun4i-dma.c:241:2: note: in expansion of macro 'for_each_clear_bit_from' for_each_clear_bit_from(i, &priv->pchans_used, max) { ^ arch/arm/include/asm/bitops.h:163:12: note: expected 'const long unsigned int *' but argument is of type 'long unsigned int (*)[1]' extern int _find_next_zero_bit_le(const unsigned long *p, int size, int offset); ^ include/linux/bitops.h:58:34: error: passing argument 1 of '_find_next_zero_bit_le' from incompatible pointer type [-Werror=incompatible-pointer-types] (bit) = find_next_zero_bit((addr), (size), (bit) + 1)) ^ arch/arm/include/asm/bitops.h:200:61: note: in definition of macro 'find_next_zero_bit' #define find_next_zero_bit(p,sz,off) _find_next_zero_bit_le(p,sz,off) ^ drivers/dma/sun4i-dma.c:241:2: note: in expansion of macro 'for_each_clear_bit_from' for_each_clear_bit_from(i, &priv->pchans_used, max) { ^ arch/arm/include/asm/bitops.h:163:12: note: expected 'const long unsigned int *' but argument is of type 'long unsigned int (*)[1]' extern int _find_next_zero_bit_le(const unsigned long *p, int size, int offset); ^ Caused (or exposed) by commit c4f8ff16b46b ("ARM: 8669/1: bitops: Align prototypes to generic API") I have used the arm tree from next-20170420 for today. -- Cheers, Stephen Rothwell -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html